CONTENTS

 1     Scope 
 2     References 
 3     Definitions  
        3.1     Terms defined elsewhere    
        3.2     Terms defined in this Recommendation       
 4     Abbreviations   
 5     Classification of optical network elements 
 6     Reference points  
 7     Functional description of the optical network elements (ONEs)     
        7.1     Functional description of a DWDM line segment    
        7.2     Functional description of an OADM (optical add/drop multiplexer) 
        7.3     Functional description of a PXC (photonic cross-connect)  
        7.4     Functional description of an AOWC (all-optical wavelength converter)       
        7.5     Functional description of an OA (optical amplifier)  
        7.6     Functional description of an optical 3R regenerator 
        7.7     Functional description of an optical 2R regenerator 
 8     ONE transfer parameters 
        8.1     DWDM line segment transfer parameters   
        8.2     OADM transfer parameters           
        8.3     PXC transfer parameters   
        8.4     AOWC transfer parameters           
        8.5     OA transfer parameters     
        8.6     Optical 3R transfer parameters       
        8.7     Optical 2R transfer parameters       
 9     Impact of the combination of cascaded optical transfer functions on line system performance    
        9.1     Impact of cascaded ONEs on line system OSNR   
        9.2     Impact of cascaded ONEs on line system residual dispersion          
        9.3     Impact of cascaded ONEs on line system PMD and PDL  
        9.4     Impact of cascaded ONEs on line system channel ripple     
        9.5     Impact of cascaded ONEs on line system transients
        9.6     Impact of the channel uniformity of cascaded ONEs on line system performance     
10     Calculation method to combine the system penalty contribution from the impact of the parameters    
Appendix I – Example transfer parameter values    
        I.1        Example 1 – Values for a re-configurable OADM without amplifiers         
        I.2        Example 2 – A second set of values for a re-configurable OADM without amplifiers         
        I.3        Example 3 – Values for a re-configurable OADM with amplifiers  
        I.4        Example 4 – A second set of values for a re-configurable OADM with amplifiers  
        I.5        Example 5 – Values for a PXC with add/drop functions and amplifiers      
Appendix II – Examples of the effects of cascading ONEs    
       II.1     Example of the impact of cascaded ONEs on line system OSNR    
       II.2     Example of the impact of cascaded ONEs on line system residual dispersion           
       II.3     Examples of the impact of cascaded ONEs on line system PMD and PDL  
       II.4     Examples of the impact of cascaded ONEs on line system channel ripple     
       II.5     Example of the impact of cascaded ONEs on line system transients 
       II.6     Example of the impact of the channel uniformity of cascaded ONEs on line system performance    
Appendix III – Example application of this Recommendation    
      III.1     Procedure  
      III.2     An example of this procedure         
Appendix IV – The users of this Recommendation    
       IV.1     Introduction          
       IV.2     The actors in the use of this Recommendation        
       IV.3     Example of the activities of the actors        
Bibliography